Use markdown in blurb

docs/2023-09-15-open-an-iex-shell-from-an-elixir-script.md

@@ -1,6 +1,10 @@
 ---
 title: "Open An IEx Shell From An Elixir Script"
-blurb: "We can run an Elixir script with either the <code>elixir</code> or the <code>iex</code> command. Both will execute the code, but the second command opens an interactive IEx shell afterward. What if, we won't know until runtime whether we want a shell or not? How can we start an IEx session even when we use <code>elixir</code>, instead of <code>iex</code>, to run our script?"
+blurb: "We can run an Elixir script with either the `elixir` or the
+`iex` command. Both will execute the code, but the second command
+opens an interactive IEx shell afterward. What if, we won't know until runtime
+whether we want a shell or not? How can we start an IEx session even when we
+use `elixir`, instead of `iex`, to run our script?"
 ...
 
 I recently had occasion to want to start an IEx session from an Elixir script. Here's how I was able to do it.

site.moon

@@ -17,15 +17,8 @@ Site.config.out_dir = "html/"
 rend = "renderers.markdown"
 require(rend).cmd = "pandoc --mathjax >"
 
--- Replace the default markdown renderer with our custom renderer
--- TODO we shouldn't remove it because it is still searched for in some places
--- example https://github.com/leafo/sitegen/blob/ac9b7c199ed7adb32064b056a438cbaed8c71d23/sitegen/renderers/html.moon#L53
--- Site.default_renderers = for v in *Site.default_renderers
-  -- if v\find "markdown" then rend else v
-
-table.insert Site.default_renderers, 1, "renderers.markdown"
-
-p Site.default_renderers
+-- Insert custom renderer in the first position so it will be preferred
+table.insert Site.default_renderers, 1, rend
 
 -- Remove "pygments" plugin because it conflicts with pandoc syntax highlighting
 Site.default_plugins = for v in *Site.default_plugins